Introduction&colon;J507 is low-hydrogen sodium coated carbon steel electrode&period; It must be operated on DCEP&period; It has very good welding usability that enables it to perform all-position welding&comma; has stable arc&comma; removal of slag is easy and has low spatter&period; The deposited metal has good mechanical performance and crack-resistance&comma; which offers good low temperature toughness&period;

Uses&colon;It is applied in welding medium-carbon steel and low-alloy structures such as 16Mn&comma; 09Mn2Si&comma; 09Mn2V and the steels used in shipbuilding such as A&comma; B&comma; D&comma; E&period; It is also used in thick steel plates and the carbon steel structures that are difficult to weld&period;

Chemical Composition &lpar;&percnt;&rpar;

Chemical Composition

C

Mn

Si

S

P

Ni

Cr

Mo

V

Guarantee Value

≤0&period;15

≤1&period;60

≤0&period;90

≤0&period;035

≤0&period;035

≤0&period;30

≤0&period;20

≤0&period;30

≤0&period;08

General Result

0&period;087

1&period;12

0&period;58

0&period;012

0&period;021

0&period;011

0&period;028

0&period;007

0&period;016

Mechanical Properties of Deposited Metal

Test Item

Rm&lpar;N&sol;mm2&rpar;

Rel&lpar;N&sol;mm2&rpar;

A &lpar;&percnt;&rpar;

KV2&lpar;J&rpar;-27°C -30°C

Guarantee Value

≥490

≥400

≥20

≥47

≥27

General Result

560

450

32

150

142

Reference Current &lpar;AC&sol;DC&rpar;

Diameter

φ2&period;5

φ3&period;2

φ4&period;0

φ5&period;0

Amperage

60 ~ 100

80 ~ 140

110 ~ 210

160 ~ 230

Notes&colon;1&period; The electrode must be preheated at the temperature of 350°C for 1 hour&period; Preheat the rod whenever it is used&period;2&period; The impurities such as rust&comma; oil stains and moisture must be cleared off of the work piece&period; 3&period; Short arc is required to perform welding&period; Narrow weld path is preferred&period;